Yup, breathing is great; but what does one do when the moment seizes them, the heart beats into the ears and it becomes so physical, the bodies reaction to the anger, oh gee, ....
Before, when it happened to me, I'd just flip out. Thankful I lived alone at that time. At least I had the better sense to keep myself away from the general population as I tried to fix myself.
It doesn't happen nearly as often and now, when I hear the drums (heart beating hard) and feel the shakes of a physical reaction, I roll a joint and though difficult in that moment, I light it up and have a few tokes. Flippin amazing plant it is. Calms me right down and suddenly almost like magic, I am human again and the issue that got me all pumped up becomes nothing serious at all.
still, its a shitty thing to have this in ones self. My sweetheart calms me down. Taking care of him takes my mind off of me.